Mental Ability (NCO Cyber Olympiad (SOF) Class 5): Questions 15  21 of 257
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Question number: 15
» Mental Ability » Basic Arithmetic
Question
Which of the following expression below is true?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  2 × (9 + 4) = 7 × (2 × 4) 

Question number: 16
» Mental Ability » Basic Arithmetic
Question
5 Mins + 25 secs = ________
Choices
Choice (4)  Response  

a.  3 mins 65 secs 

b.  6 mins 95 secs 

c.  3 mins 50 secs 

d.  4 mins 85 secs 

Question number: 17
» Mental Ability » Basic Arithmetic
Question
A Chair was bought for Rs. 1000 and sold for Rs. 900. Then the loss percent is
Choices
Choice (4)  Response  

a.  15% 

b.  5% 

c.  12% 

d.  10% 

Question number: 18
» Mental Ability » Basic Arithmetic
Question
The smallest four digit number that can be formed using 5,6, 1, and 0 is ________.
Choices
Choice (4)  Response  

a.  5610 

b.  1056 

c.  6510 

d.  6501 

Question number: 19
» Mental Ability » Basic Arithmetic
Question
8 km 100 m equals ________.
Choices
Choice (4)  Response  

a.  8.1 km 

b.  508.0km 

c.  0.5080km 

d.  5.08 km 

Question number: 20
» Mental Ability » Basic Geometry
Question
Which of the following are supplementary angles?
Choices
Choice (4)  Response  

a.  180,180 

b.  40,50 

c.  90,90 

d.  80,140 

Question number: 21
» Mental Ability » Basic Arithmetic
Question
Gita is mailing 3 books to her cousin. Each book is 7 inches long and 4 inches wide. She will mail the books together in 1 box. She wants to determine the size of the box she needs to mail the books. What information does she need?
Choices
Choice (4)  Response  

a.  The number of pages in each book 

b.  The thickness of each book 

c.  The weight of the books. 

d.  The distance the books will be sent 
